Answer:
old crust is recycled by subduction
Explanation:
Answer: c. Over the span of 10 to 1,000 years, groundwater behaves as a renewable resource.
Explanation:
b. The fault is younger than the layers it cuts through, but older than the layers above it.
Explanation:
Since the fault cuts through the lower rock layers and terminates against the ones above it, we can conclude that the fault is younger than the layers it cut through but older than the layers above it.
We know this based on the principle of cross-cutting.
The principle of cross-cutting relationship suggests that "a fault and an intrusion is younger than the rocks they cut through".
- This principle is very important in determining the relative age of sedimentary strata.
- The rock units through which a fault permeates must have been there before the fault formed. So they are older.
- If the overlying layer above the fault is not affected then it is younger than the faulting event
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Bettt I will what’s it for again
Precious metals are rare, naturally occurring metallic chemical elements. They tend to be less reactive than most elements, are usually ductile and have a high lustre. Precious metals have high economic value. Examples are: gold,silver and platinum. Gems on the other hand are minerals or rocks that can be cut, shaped, and polished into beautiful stones. Examples include emerald, ruby and sapphire.
Both precious metals and gems are rare and valuable.